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Title: New high accuracy measurement of the {sup 17}O(p,{alpha}){sup 14}N reaction rate at astrophysical temperatures

Abstract

The {sup 17}O(p,{alpha}){sup 14}N reaction is of fundamental relevance in several astrophysical scenarios, such as novae, asymptotic giant branch nucleosynthesis, and {gamma}-ray astronomy. We report on the indirect measurement of the {sup 17}O(p,{alpha}){sup 14}N reaction bare-nucleus cross section in the low-energy region. In particular, the two resonances at E{sub R}{sup c.m.}=65 keV and E{sub R}{sup c.m.}=183 keV, which dominate the reaction rate inside the Gamow window, have been observed, and the strength of the 65 keV resonance has been deduced. The reaction rate determination and the comparison with the results of the previous measurements are also discussed.

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ;  [1];  [2];  [3]; ; ;  [4];  [5]
  1. Dipartimento di Metodologie Fisiche e Chimiche per l'Ingegneria, Universita di Catania, and INFN-Laboratori Nazionali del Sud, Catania (Italy)
  2. Centre de Spectrometrie Nucleaire et de Spectrometrie de Masse, UMR 8609, CNRS/IN2P3 and Universite Paris Sud 11, Batiment 104, F-91405 Orsay Campus (France)
  3. Cyclotron Institute, Texas A and M University College Station, Texas (United States)
  4. Nuclear Physics Institute of ASCR Rez near Prague (Czech Republic)
  5. Institut de Physique Nucleaire, UMR-8608, CNRS/IN2P3 and Universite Paris-Sud XI, F-91406 Orsay (France)
Publication Date:
OSTI Identifier:
21419505
Resource Type:
Journal Article
Journal Name:
Physical Review. C, Nuclear Physics
Additional Journal Information:
Journal Volume: 82; Journal Issue: 3; Other Information: DOI: 10.1103/PhysRevC.82.032801; (c) 2010 The American Physical Society; Journal ID: ISSN 0556-2813
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ACCURACY; ALPHA DECAY; ASTROPHYSICS; ASYMPTOTIC SOLUTIONS; COMPARATIVE EVALUATIONS; CROSS SECTIONS; GAMMA ASTRONOMY; KEV RANGE; NITROGEN 14; NOVAE; NUCLEOSYNTHESIS; OXYGEN 17 TARGET; PROTON REACTIONS; REACTION KINETICS; RESONANCE; ASTRONOMY; BARYON REACTIONS; BINARY STARS; CHARGED-PARTICLE REACTIONS; DECAY; ENERGY RANGE; ERUPTIVE VARIABLE STARS; EVALUATION; HADRON REACTIONS; ISOTOPES; KINETICS; LIGHT NUCLEI; MATHEMATICAL SOLUTIONS; NITROGEN ISOTOPES; NUCLEAR DECAY; NUCLEAR REACTIONS; NUCLEI; NUCLEON REACTIONS; ODD-ODD NUCLEI; PHYSICS; STABLE ISOTOPES; STARS; SYNTHESIS; TARGETS; VARIABLE STARS

Citation Formats

Sergi, M L, Spitaleri, C, La Cognata, M, Cherubini, S, Crucilla, V, Gulino, M, Kiss, G G, Lamia, L, Pizzone, R G, Puglia, S M. R., Rapisarda, G G, Romano, S, Tudisco, S, Tumino, A, Coc, A, Mukhamedzhanov, A, Burjan, S V, Hons, Z, Kroha, V, and Hammache, F. New high accuracy measurement of the {sup 17}O(p,{alpha}){sup 14}N reaction rate at astrophysical temperatures. United States: N. p., 2010. Web. doi:10.1103/PHYSREVC.82.032801.
Sergi, M L, Spitaleri, C, La Cognata, M, Cherubini, S, Crucilla, V, Gulino, M, Kiss, G G, Lamia, L, Pizzone, R G, Puglia, S M. R., Rapisarda, G G, Romano, S, Tudisco, S, Tumino, A, Coc, A, Mukhamedzhanov, A, Burjan, S V, Hons, Z, Kroha, V, & Hammache, F. New high accuracy measurement of the {sup 17}O(p,{alpha}){sup 14}N reaction rate at astrophysical temperatures. United States. https://doi.org/10.1103/PHYSREVC.82.032801
Sergi, M L, Spitaleri, C, La Cognata, M, Cherubini, S, Crucilla, V, Gulino, M, Kiss, G G, Lamia, L, Pizzone, R G, Puglia, S M. R., Rapisarda, G G, Romano, S, Tudisco, S, Tumino, A, Coc, A, Mukhamedzhanov, A, Burjan, S V, Hons, Z, Kroha, V, and Hammache, F. 2010. "New high accuracy measurement of the {sup 17}O(p,{alpha}){sup 14}N reaction rate at astrophysical temperatures". United States. https://doi.org/10.1103/PHYSREVC.82.032801.
@article{osti_21419505,
title = {New high accuracy measurement of the {sup 17}O(p,{alpha}){sup 14}N reaction rate at astrophysical temperatures},
author = {Sergi, M L and Spitaleri, C and La Cognata, M and Cherubini, S and Crucilla, V and Gulino, M and Kiss, G G and Lamia, L and Pizzone, R G and Puglia, S M. R. and Rapisarda, G G and Romano, S and Tudisco, S and Tumino, A and Coc, A and Mukhamedzhanov, A and Burjan, S V and Hons, Z and Kroha, V and Hammache, F},
abstractNote = {The {sup 17}O(p,{alpha}){sup 14}N reaction is of fundamental relevance in several astrophysical scenarios, such as novae, asymptotic giant branch nucleosynthesis, and {gamma}-ray astronomy. We report on the indirect measurement of the {sup 17}O(p,{alpha}){sup 14}N reaction bare-nucleus cross section in the low-energy region. In particular, the two resonances at E{sub R}{sup c.m.}=65 keV and E{sub R}{sup c.m.}=183 keV, which dominate the reaction rate inside the Gamow window, have been observed, and the strength of the 65 keV resonance has been deduced. The reaction rate determination and the comparison with the results of the previous measurements are also discussed.},
doi = {10.1103/PHYSREVC.82.032801},
url = {https://www.osti.gov/biblio/21419505}, journal = {Physical Review. C, Nuclear Physics},
issn = {0556-2813},
number = 3,
volume = 82,
place = {United States},
year = {Wed Sep 15 00:00:00 EDT 2010},
month = {Wed Sep 15 00:00:00 EDT 2010}
}